Flyer



S pt- 7,1937; c. H. COLVIN 2,092,389

- FLYER I Filed NOV. 2, 1935 much INVENTOR Patented Sept. 7, 1937 rarerorig FLYER Charles H. Colvin, Morris Township, Morris County, N. J.

Application November 2, 1935, Serial No. 48,005

6 Claims.

This invention relates to a flyer or running guide for use in connectionwith apparatus for twisting yarn.

As is well known it is desirable when throwing yarn, that is, whentwisting yarn by drawing it off a revolving bobbin to impart a twist toth yarn, to interpose a running guide or flyer between the supply bobbinor yarn package and the fixed and reciprocating guides which lead theyarn to the receiving or take-up bobbin.

This invention aims at improving the construction of such fiyers to makethem more suitable and useful for the purpose described.

It is an object of this invention to provide a flyer which may bereadily installed on present throwing spindles, and which may beoperated at high speed without throwing oil, and for long periodswithout addition of lubricant to the bearings thereof. It is a furtherobject to provide a flyer wherein the guide wires are clamped and keyedin place and wherein such wires are readily replaceable.

The accompanying drawing illustrates a preferred form of my invention,but it is not intended to limit the scope of the invention to theprecise structure disclosed, many modifications being possible withinthe scope of my invention as hereinafter claimed.

Figure l is a view of my flyer in elevation, including by way ofillustration a portion of the throwing frame and of the yarn to bethrown.

Figure 2 is a View in section on the line 2-2 of Figure 1, including afragmentary View of the bobbin or yarn package and of the spindle bladeby which it is carried.

Figure 3 is a view in section through the flyer at the line 33 of Figure2, and illustrates particularly the form of the wires and the method ofclamping and keying said wires.

Now referring more particularly to the drawing for an explanation of theinvention, the spindle blade 8 carries the supply bobbin 9 upon which iswound the yarn Ill to be twisted. A single thread of the yarn is shownat It! in Figure 1.

Also carried by the blade 8 and illustrated as telescoped over it(though it might equally well be inserted in a. socket within the blade)is the body ll of the flyer. Such blades are commonly made with acylindrical portion l3 surmounted by a tapered portion I4. I make thebody ll of my flyer recessed on two diameters, the larger of whichdiameters fits snugly upon the cylindrical portion l3 of the blade,where it is held tight by the spring tension created by slightlypinching the body to tend to close the slot l5; and the smaller of suchdiameters forms a step in relation to said larger diameter and at thisstep rests on the tapered portion it of said blade near its extreme top.I thus provide for the association of flyer and blade in such a way thatthere will be little or no radial play between said flyer and blade, andhence little chance [or the fiyer to vibrate or to run out of truth. Anouter section ll, of the body H is knurled to aid in mounting anddismounting the flyer.

At its upper end the body ll carries a staff l8 upon which is journaledthe barrel l9, by means of bearings 2i and 22 which are preferably of amaterial such as oilite bronze which is porous and holds a supply of oilsufiicient for operation for a long period without renewal of lubricant.This feature is of importance because the lubrication of flyers involvesthe hazard of spoiling the yarn by getting oil on it. Such a bearingmaterial as I propose to use largely eliminates this difliculty becausethe porous bronze tends to retain the oil rather than to let it fly outas does an ordinary bearing.

The barrel i9 is retained on the staff l8 by a slotted nut 28. Theoutside of the barrel i9 is substantially cylindrical, with an enlargedupper end which may be hexagonal as shown or otherwise arranged for easygripping by tool or by hand, and the lower end carries a thread uponwhich is screwed a nut 23. Interposed between the extended head and thenut 23 are a washer 24, two guide wires 23 and 2? and sleeve 28.

In use the yarn ill is led from the bobbin 9 are made with their centerportions of the simple substantially semi-circular form shown in Figure3, adapting them to be laid in the recesses of the sleeve 28 and to beclamped in place by screwing up of the nut 23 on barrel E9. Themaintenance r of the interrelationship of the axes of the wires 26 and2i about the axis of the staff It is provided by the notches 32 and 33,and by corresponding notches at the lower end of the sleeve 28, throughwhich pass the extending portions of the wires 26 and 21.

Having thus disclosed and described my invention, I claim its novelty asfollows:

1. In combination with a frame for throwing yarn and having a spindle, aflyer, said flyer cornprising a body having a socket adapted to fit overand rest upon the top of said spindle and a staff, a guide for saidyarn, and said guide journaled upon said staff.

2. In a flyer, means for clamping guide wires, comprising asubstantially cylindrical member having an enlarged head on one end andhaving the other end threaded, a nut on said threaded end, and a sleevehaving at each end an annular recess, the walls of which are cut away atopposite sides, guide wires positioned in said recesses and extendingthrough said cut-away walls and adapted to be locked in place bytightening the aforesaid nut.

3. A fiyer for the blade of a throwing spindle said blade having acylindrical portion surmounted by a tapered portion, comprising a bodyhaving a staff, a yarn guide journaled upon said staff, said body beingrecessed on two diameters, the larger diameter adapted to fit upon saidcylindrical portion of said blade and having a slot throughout a part ofthe length of said larger diameter to cause the lower end of said bodyto fit snugly upon said blade, and the smaller diameter adapted to fitupon said tapered upper portion of said blade.

4. A flyer for the blade of a throwing spindle said blade having acylindrical portion, comprising a body having a staff, a yarn guidejournaled upon said stafi, said body being recessed and adapted to fitupon said cylindrical portion of said blade and having a slot throughouta part of the length of said body to cause the end of said body to fitsnugly upon said blade.

5. In a flyer for a throwing spindle, a body having a socket adapted tofit over and rest upon the top of said spindle and a stafi", aguide-carrying member, porous bearing elements interposed between saidmember and said staff to journal said member on said staff, and saidporous elements being impregnated with a lubricant.

6. In a flyer for a throwing spindle, a body having a socket adapted tofit over and rest upon the top of said spindle and a stafi, aguide-carrying member, and porous bearing elements interposed betweensaid member and said staff to journal said member on said stafi.

CHARLES H. COLVIN.

